Mailfloss pricing
Mailfloss costs $29 a month for 10,000 credits, or pay as you go from $8.00 per 1,000 on a 1,000 pack, falling to $1.04 at 2,500,000. At a steady monthly volume that comes to $29.00 for 10,000, $160.00 for 50,000, $209.00 for 100,000 emails a month on its lowest-cost published route. SimpleVerifier Pro is $29.99 a month with unlimited email verification at any volume.
Prices read from mailfloss.com · prices checked 12 Oct 2026 · by SimpleVerifier Team
Mailfloss plans and tiers
Every tier on Mailfloss’s pricing page as we read it. Per-1,000 is the tier price divided by its allowance.
| Route | Volume | Price | Per 1,000 |
|---|---|---|---|
| Subscription | 10,000 a month | $29/mo | $2.90 |
| Subscription | 25,000 a month | $59/mo | $2.36 |
| Subscription | 35,000 a month | $94/mo | $2.69 |
| Subscription | 60,000 a month | $174/mo | $2.90 |
| Subscription | 75,000 a month | $204/mo | $2.72 |
| Subscription | 125,000 a month | $209/mo | $1.67 |
| Subscription | 135,000 a month | $244/mo | $1.81 |
| Subscription | 175,000 a month | $354/mo | $2.02 |
| Subscription | 260,000 a month | $479/mo | $1.84 |
| Subscription | 275,000 a month | $509/mo | $1.85 |
| Subscription | 375,000 a month | $659/mo | $1.76 |
| Subscription | 510,000 a month | $729/mo | $1.43 |
| Subscription | 525,000 a month | $759/mo | $1.45 |
| Subscription | 625,000 a month | $909/mo | $1.45 |
| Credit pack | 1,000 credits | $8 | $8.00 |
| Credit pack | 10,000 credits | $40 | $4.00 |
| Credit pack | 50,000 credits | $160 | $3.20 |
| Credit pack | 100,000 credits | $300 | $3.00 |
| Credit pack | 250,000 credits | $500 | $2.00 |
| Credit pack | 500,000 credits | $800 | $1.60 |
| Credit pack | 1,000,000 credits | $1,200 | $1.20 |
| Credit pack | 2,500,000 credits | $2,600 | $1.04 |
What Mailfloss costs at 10k, 50k and 100k emails a month
A recurring monthly volume, priced on Mailfloss’s lowest-cost published route for that size: the smallest subscription tier whose allowance covers it, or the pay-as-you-go pack bought again each month, whichever costs less.
| Emails a month | Mailfloss | Per 1,000 | SimpleVerifier Pro |
|---|---|---|---|
| 10,000 | $29.00$29/mo plan with 10,000 a month | $2.90 | $29.99$3.00 per 1,000 |
| 50,000 | $160.00Pay as you go: 50,000-credit pack at $3.20 per 1,000 | $3.20 | $29.99$0.60 per 1,000 |
| 100,000 | $209.00$209/mo plan with 125,000 a month | $2.09 | $29.99$0.30 per 1,000 |
“Not published” means Mailfloss’s page, as we read it, did not price that volume; we do not extrapolate. Run your own numbers in the cost calculator.
How Mailfloss meters usage
In Mailfloss’s own framing: monthly plans by volume, or prepaid credits that never expire. Mailfloss says its pay-as-you-go credits never expire.
What to watch: the plan is sized by monthly volume, so a list that grows pushes you up a tier whether or not the extra addresses are worth checking.
What it does well: Mailfloss is worth keeping if you want verification that runs automatically against your email platform's list rather than as uploads you remember to do.
How SimpleVerifier’s flat plans compare
SimpleVerifier sells two plans, neither metered on email verification. Pro, $29.99 a month: Unlimited email verification, finder and phone format checks. Email + Phone, $49.99 a month: Everything in Pro, plus live carrier lookups for your phone lists. Re-verifying a list adds nothing to the bill, and confirmed results are cached for 14 days.
At 100,000 emails a month, Mailfloss’s published route is $209.00 against $29.99 for Pro, a difference of $2,148.12 over a year.
For small volumes Mailfloss costs less than we do. Up to 10,000 addresses can be bought from Mailfloss for under $29.99, so if that covers your list and you verify it once, Mailfloss is the better buy and a subscription to us is not.
Common questions
- How much does Mailfloss cost?
- Mailfloss costs $29 a month for 10,000 credits, or pay as you go from $8.00 per 1,000 on a 1,000 pack, falling to $1.04 at 2,500,000. Metering: monthly plans by volume, or prepaid credits that never expire. Prices read from mailfloss.com on 12 Oct 2026.
- How much does Mailfloss cost for 10,000 emails a month?
- 10,000 emails a month costs $29.00 on Mailfloss ($29/mo plan with 10,000 a month). SimpleVerifier Pro is $29.99 a month at any volume.
- How much does Mailfloss cost for 50,000 emails a month?
- 50,000 emails a month costs $160.00 on Mailfloss (pay as you go: 50,000-credit pack at $3.20 per 1,000). SimpleVerifier Pro is $29.99 a month at any volume.
- How much does Mailfloss cost for 100,000 emails a month?
- 100,000 emails a month costs $209.00 on Mailfloss ($209/mo plan with 125,000 a month). SimpleVerifier Pro is $29.99 a month at any volume.
- Do Mailfloss credits expire?
- Mailfloss says its pay-as-you-go credits never expire. How Mailfloss describes its metering: monthly plans by volume, or prepaid credits that never expire.
- Is SimpleVerifier cheaper than Mailfloss?
- Not at every volume. Mailfloss costs less than $29.99 at 10,000 emails a month on its published prices. For small volumes Mailfloss costs less than we do. Up to 10,000 addresses can be bought from Mailfloss for under $29.99, so if that covers your list and you verify it once, Mailfloss is the better buy and a subscription to us is not.
One flat price, any volume
Pro is $29.99 a month and Email + Phone is $49.99, with unlimited email verification and API access on both. Cancel anytime.